So what will we see when the Barden Bellas and Treblemakers take the stage during the opening act? Well, if Skylar, Ester, Hanna Mae and Utkarsh are to be believed, all of the following: dinosaurs, fire people, molten lava, the Blue Men Group, gas and Blue Ivy. Pretty impressive, huh?

Now, if you want the real lowdown, head over to MTV News to find out which songs will get the mash-up treatment tonight. (Hint: It's Miley!)

Tune in at 9 p.m. ET so you don't miss a minute!

Will Jennifer Lawrence get her silver lining in the form of a Golden Popcorn? Which beefcake will sizzle in our brand-new Best Shirtless Performance category? It's up to you to decide the winners of the 2013 MTV Movie Awards! Vote now, and tune in Sunday, April 14 at 9 p.m. ET, as star Rebel Wilson takes the stage at the Sony Pictures Studios lot in Culver City, California.

How excited are you to see the cast reunite at tonight's MTV Movie Awards? Tell us in the comments and on Twitter!